Sewing-machine.



M. DRUOKERMAN.

SEWING MACHINE.

APPLICATION FILED AUG. 2Q, 1913.

Patented Aug. 25, 1914.

5 snnzflrs-annm 1.

IN VEN TOR A TTORNEY THE rwnms PETERS ca FHom-urnm \Xush'marmv. c a

M. DRUGKERMAN.

SEWING MACHINE APPLICATION FILED AUG. 26, 1913. 1,1 08,348. PatentedAug. 25, 1914,

5 SHEETs ET 2 mm A? MW? M. DRUGKERMAN.

SEWING MACHINE.

APPLICATION FILED AUG. 26, 1913.

1,]. 08,348. Patented Aug. 25, 1914.

5 SHEETS-SHBET 3.

WITNESSES: INVENTOI? WI4- [T V THE Norems PETERS (1o PHO70-L|THO..WASHING TON. U.

M. DRUCKERMAN.

$EWING MACHINE.

APPLICATION FILED mm. 26, 1913.

H :N x W; I @w E a MN T $MW go E M. DRUCKERMAN.

SEWING MACHINE.

APPLIOATIOH FILED AUG. 26, 1913.

Patented Aug.25,1914.

THE NORRIS PETERS (Ill,PHOTO-1.17740. WASHINGTON. D. C.

MAX DRUOKERMAN, or BROOKLYN, new YORK.

SEWING-MAGHINE 1,108,348. ori i al application filed June 25,1913,

To all whom it may concern:

lle it known that I, MAX DnuoirnnMAN, a citizenot theUnited States, anda res1- dent of Brooklyn, in the county of Kings and State of New York,have invented certain new and useful Improvements in Sewing-ll/Iachines, ofwhich the following is a specification, taken inconnection with the accompanying drawings, which for-ma part of thesame.

This apphcatmn is a .CllVlSlOIYOf my copending application for sewingmachines filed June 25, 191.8, Ser. No. 77,669.. A

My invention relatesto sewmg machines and more particularly to anembroidery sewing machine having avertically and laterally movableneedle and one adapted to make extremely long stitches, as well as shortones, and any intermediate length of: stitches between the maximum andmun I am aware. that there. are sewing mas-I chines having a verticallyand laterally mov:

able needle making a zigzag stitch and I make no claim broadly to suchmachine. There are certain structural limitations to such machines whichprevents them making an excessively long stitch;

I have obtained the most beautiful eifects in embroidery by greatlylengthening the stitch, over any length of stitch which can be made byany of the old forms oi sewing machines having a vertically andlaterally For example, the maxi mum length of stitch for the ordinaryold form of zigzag sewing machine is about movable needle.

seven-sixteenths of an inch; the stitch can then he graduated down tothe minimum, by

varying the lateral throw of the needle bar 1 in the manner well knownin this art.. By

. my invention I increase the maximum length otthe stitch to any desiredlength dependin u Jonthe size of the relative )arts of the machine...With the operating parts of the machine substantially the same size. asthat of the ordlnary zigzag mach ne making the maximum length oft stitchof say about seven-sixteenths of an inch, I can make, by

my inventioma stitch an inch or one and a quarter inches long, and varythe length of the intermediate stitches in any suitable manner so as toproduce beautiful embroidcry ctl'ects. This difference inthe length ofthe maximum stitches permits my embroidery machine to embrolder designsand pro- Specification of Letters Patent. Patented Aug, 25, 1914,

Serial No. 775,669, Divided and this application filed August 26, 1913.Serial No. 786,658.

duce effects which are wholly novel and which cannot be made bytheordinary zigzag sewing machine having a comparatively short maximumstitch.

My present application relates moreparticularly to a. novel take-upmechanism which is preferably used with the other parts of the sewingmachine described in this application so that relatively long per tionsof thread may be played out to make excessively long stitches, andyet mytakeup mechanism will automatically adjustit self to play cut shortlengths of thread for short stitches. It is to be understood, howt ever,that my take-up mechanism maybe used with other mechanisms, if desired.

It further relates to certain details of c011- struction and combinationof elements which i Q will be more fully hereinafter described in thespecification and pointed out in the clalms. i i

In the accompanying drawings showing one illust 'ative embod ment of myinvention and in which the same reference numerals refer to similarparts in the several figures, Figure l is a side elevation of myimproved sewingmachine; Fig. 2 is an end elevation of the head andshuttle mechanism; Fig. 3 is an inverted plan viewof the sewingmachinebed; Fig. dis a detail vertical section through a portion of thesow ing machine bed and showing the shuttle,

needle and accelerator in side elevation; Fig. 5 is a transversevertical section substantially on the line 55 oi Figij l lookingin thedirection of the arrows; Fig. 6 is a frag- .mentary plan view of thesewing machine head showing the take-up mechanism; Fig.

7 is an end elevation of the head, showing the take-up mechanism; Fig. 8is a :lragmeir tary transverse vcrtical'section substantially on theline 88 of Fig. 1; Fig. 9 is a fragmentaryside elevation of the headandshuttle showing the needle beginning to make a stitch; Fig. 10 is aview similar to Fig. 9 showing the parts in the next step in the makingof the stitch; Fig. 11 is a view siinilar to Figs. 9 and 10 showing thenext step wherein the hook of the shuttle has caught the needle threadand begins to form the loop; Fig.- 12 is. a view similar to Fig. 11showing the hook with the shuttle at substantiallya quarter revolutionfrom that shown in Fig. 11 and with the take-up mechanism in theposition at that part of the stitch. Figs. 9, 10, 11 and 12 showsubstantially one complete cycle of the parts in the formation of astitch; 13 is a diagrammatic plan view of a fabric embellished with theexcessively long stitches, as well as some short stitches, made by myimproved embroidery sewing machine; Fig. 14 is a fragmentary plan viewof the fabric such as is Fig. 13 showing one of the many forms ofembroidery which may be made with the excessively long stitchescontrasted or used in connection with the short stitches to obtain themost beautiful effects in embroidery; and Fig. 15 is an inverted planView of the fabric showing the coeperation of needle thread loops andthe substantially straight shuttle thread. Fig. 16 is a front elevationof a detailshowing a modification in which two needles are carried bythe needle bar.

In the illustrative embodiments of my invention shown in the drawings, 1is a sewing machine having ahead 2, a bed 3, a rocking arm 4 providedwith a slot 5, in which slides the slide 6 to which is connected apitman 7 the other end of which is connected with a sleeve Swithin whichreciprocates the needle bar 9 carrying the needle 10.

The presser foot bar 11 carries the ordinary presser feet 12, 12coeperating with the ordinaryfeed dogs 13, 13, Fig. 4. The presser footbar is controlled by the ordinary release lever 14, Fig. 2, cooperatingwith the arm15 to lift the presser feet to release the goods. The sewingmachine head is also preferably provided with an ordinary tensionrelease lever 16 pivoted at 17 and operated by'the screw 01' pin 18operating in the slot 19, and, when the presser foot lever 14 is raised,it serves to throw the end 20 of the lever 16 into contact with theordinary spring tension member 21 and release the tension upon theneedle threads 22 in an old and well understood manner.

The head is provided with the ordinary needle bar shaft 23, Fig. 1,having cranks 24,24 with which coiiperate pitmen 25, 25 connecting themain or needle bar shaft 23 to the main shuttle shaft 26 sothat therotation of the needle bar shaft 23 by applying any suitable power tothat shaft, as for example to the pulley 27, will cause the needle barshaft and the main portion of the shuttle shaft 26 to operate in unison.

The needle bar shaft .43 is provided with the ordinary cam (not shown)to operate the rock arm 4in the usual and well known manner in thisclass of machines. On the end of the needle bar shaft 23 I provide ahead 28 (Figs. 1 and 8) having a cam slot 29 to cotiperate with the maintake-up 30, and preferably the same cam slot cooperates with theauxiliary take up 31 which is pivoted on the head of the sewing machineat 32 and extends out adjacent to the main take up 30. I connect apitman 33 to the head 28 in any suitable manner, such as by the pin 34,the other end of the pitman being connected to the collar 35 fast to theneedle bar 9.

On the head of the machine I pivot a sleeve. 36 on the arm 37 by meansof the pin 38 so that the sleeve 36, and particularly the needle bar 9with its needle 10, will swing in the same vertical plane in which theshuttle 39 rotates for a purpose which will be more fully hereinafterpointed out in detail. 1

Below the bed 3 is mounted in suitable brackets the shuttle shaft 26,previously noted, which, however, does notextend t0 the shuttle, beingbroken at some intermediate point as for example at 40, Fig. 3. Upontheshaft 26 I mount a gear 41 and upon a countershaft 42 I mount asimilar gear 43,- the' relation of the gears being one to one. Upon theintermediate shuttle shaft 44 I mount the gear wheel 45 having it meshwitha larger gear wheel 46 upon the countershaft 42. The relation of thegear wheels 45 and 46 is preferably two to one, the shaft 44 beingrevolved twice to the one revolution of the countershaft 42.

Upon the end of the intermediate shuttle shaft 44 I mount an accelerator49 which at a certain predetermined point of the revolution of theshuttle 39, will accelerate its movement so -that the 100 made by theneedle thread 22 will be quic 1y thrown past the center 95, Fig. 11 ofthe shuttle to insure the loop never catching on the shuttle at a pointdirectly beneath its axis of rotation 47; for example if this shouldoccur the upward pull on the needle thread would tighten the loop 48 andcause the needle thread to break.

The accelerator 49, Figs. 3 and 4, consists preferably of adisk 50mounted upon the intermediate shuttle shaft 44 to which is pivoted alink 51 by means of a pin 52. The other end 55 of'this link 51 ispivoted to an arm 53 carried by the accelerator shaft 54. The end 55 ofthe link 51 will be caused, in an obvious manner, to move to and fromthe axis of rotation of the shuttle shaft 44 so that during that-periodof rotation of the shuttle shaft 44 and the end 55 of the link 51 whenthey are nearest the periphery of the disk 50, the-shaft 54 willbecaused momentarily to move with greater speed than its normalrotation. The parts are soarranged that this increased speed of rotationof the shaft 54 occurs just as the needle loop 48 is about to reach apoint 95, Fig. 11 directly beneath the axis of rotation 47 of theshuttle 39 so that the rotary movement of the shuttle 39 will beaccelerated or speeded up momentarily until the loop 48 passes thiscritical point in its formation. This acceleration therefore occurs onceon each revolution or the shuttle. The accelerator shaft 5% drivestheshuttle 89 in any suitable manner preferably by means of the gear 57,idler 58 and the gear 59 nountedupon the shaft 60.

'lhe fork 61 and the cam 62 operating; it arein themselves old andcooperate withthe ordinary form of stitch controller shaft G3. The camupon the shaft 26 and the fork till mounted upon the rock shaft 66 areof the ordinary construction to operate thefeed dogs 13, 13. In mymachine they operate the feed dogs once to two revolutions of theshuttle. p My improved sewing machine shown in the drawings greatlyincreases the length of the stitch over and above that which can bellldt'lQdIY any zigzag sewing machine. prior to iny invention. A commonexpcdientin the ordinary iorin ot' Zigzag sewinginachine is to pivot alink or similar member on a vertical pivot on the head of the machine sothat it would act as a guide orsleeve tor the needle bar 9, the needlebar being caused to move vertically and also laterally but in the arc ofa circle, the center of which wouldbe the pivot connecting the link withthe head. This is the ordinary form well known in the trade. .lfn such amachine tl'ieneedle bar andthe needle travel in the arc oi a horj'nrental circle while the hook or of the shuttle 39 rotates vertically ata tangent to that are. It is, therefore, obvious that only in a certainportion of that are so formed will the hoot: 67 of the shuttle 89 catchthe needle im el-8 formed by the needle thread 522. it is, therefore,impossible to make a COl1lPlll'2ltively long stitch with such a machinein which the needle bar, equivalent to the bar 9, inovesin the arcof acircle while the hook (3? moves at a tangent to that are, for the reasonthat the hook would not catch the loops formed by the needle at the endsof; the are for the reason that in that position path of the 3 the loopwould be out of the rotating heel: (S7.

in my implored sewing machine, I meant the needle bar 9 in any suitablemanner, to swing in the same vertical plane in which rotates the shuttle39. As previously ere plained l: accomplish this result by mountthesleeve or guide 36 so that it will roving in a vertical plane over therotating" shuttle 39 and will permit the oscillation of the needle bar 9in the same vertical plane that the shuttle 39 rotates in. I am,therefore, enabled to greatly increase the length of the stitch formedby the machine, for the loop, wherever formed, will always be in thepatl' of the hook 67 of the shuttle 39.

l l ith the parts of the machine the same size as in the old form inwhich the needle bar travels in the arc of a circle at a tangent to theshuttle, I can increase the length of the stitch from about; sevensinteenths, which is tltclr can be proper-tn nately increased. l haveoltaarued excellent results 111 making embroidery by making; the lengthoi the maximum st]. ones ahoutqone inch long. I l l p The lateral throwoi? the needle bar 5) may be regulated by the contioller rod (38, thelever til), link 'l'l), lever 71, rock shaft T2 and. lever it connectedto the link It by operat ing the. controller rod (38 in any suitablemanner either automatically such as shown in my con ipanion applicationSerial. lilo. 736,130, iiled December 11, 1912, or by any ordinary kneelever (not shown). 3

Uinittinp; for the moment my improved take up do ice which is used tofeed a large amount oi thread to to Kit the successively long stitches,and to per 1 stantchange from a lens; to a short so orvice versa withoutai'iecting the successful glFetuling of the thread, the operation is asfollows: Power being applied in anv suitable manner to the pulley'il',preferably iroin some source of electric or other source of power, theneedle bar shart 23 is rotated which catmes the vertical reciprocationof the needle bar 9 by the link 33 being connectedto the head 98 andsecured to the needl bar by the collar 35, the needle bar reci proca tin *ertically finely throi'lgh the sleeves 2-36 andll. ltn addition tothis vertical. 1113i protiaation the needle bar 9 is caused toinov'e inastraight line substantially at right angles to the horizonta l axis ofthe sluittle 3%) by the pitinan 7 and roe. .ing arin 4t, which is old inthe art and its operation need not be here scribed in detail except totate that the rocllln arni and its operating parts. in. tluimseli is,are no portion of my invention. it the same time that the needle barshall; Pill is rotated, the shuttle shaft is operated by the pit- 1 nianE35, which, throug the .iueehanism previously deb h '1 .r is i e; ll)causi it to revolve at the same speed as the shalt 2b. The

gear wheels to and nice that to perniit the needle to lay down thetliread ilor uiy ively lone stitches th: t i is preil'eable to permitthe scuttle with thehoel; ll? to rotate idly,.without catching a loopell, every other rotation. This gives the needle time to form one loopl8 at one end of its travel ribed, transmits power lo the and the nextloop 48 at the other extreme end of its travel, the hook GTbetween thesetwo extreme movements of the needle, rotating once idly but every othertime catching the loop LSonce at the end 75 of the slot 76 in the plate77, Fig. 11, and on the second revolution of the shuttle 39 from' theposition shown in Fig. 11 catching the loop 18 when the needle bar 9 andneedle 10 have been reciprocated by the rocking arm 1 and connectionsfrom the extreme end 75 of the slot 76 to the other extreme end 78 ofthe same slot. Fig. 11 shows the loop being caught by the hook at oneextreme movement of the needle bar 9, it being readily seen that whentheneedle bar is depressed and forced into the other extreme end 78 ofthe slot 7 6, that the hook 67 will then also catch the loop, for thvertical and lateral reciprocation of the needle bar 9 and needle 10 isin the same vertical plane in which rotates the shuttle 37.

In Fig. 9 the hook 67 of the shuttle is rotating without cooperatingwith a loop. In Fig. 10 the needle is about to enter the cloth which itdoes in Fig. 11 forming the loop 48 which is then immediately caught bythe hook 67 and carried around in the ordinary way until the loop isabout to pass the point 95 when the accelerator mechanism, previouslydescribed, as well as a portion of the take up mechanism to be laterdescribed, will cause the loop to be quickly pulled past this point andclear the hook. The loops 48 so formed cooperate in the ordinary mannerwith the shuttle or looking thread 56. It will be noted in Figs. 9 to 12and. more particularly in Fig. 15 that while my exceedingly longstitches 79 as well as the loops 80, appearing on the reverse of thefabric 81, take a great length of the needle thread 22, no greaterlength of shuttle thread 56 is required than on the old form of zigzagembroidery machine, or for that matter as much, for the reason that inmy machine I preferably so arrange the parts that the shuttle or lockingthread 56 extends substantially in a straight line which not onlyimproves the looks of the reverse of the embroidered fabric 81, but alsotakes a shorter length of shuttle thread 56 thus saving the time ofcontinually replacing the bobbin. or thread holder 82 either with a newbobbin or stopping to fill the old one.

My present invention is my improved take up mechanism used alone or incombination with the other elements of my embroidery sewing machine,which will feed the relatively large quantity of thread to the needle tomake the stitches of maximum length without putting appreciable tensionupon the thread, which has been worked into the fabric 81 which wouldpucker the goods, or in any manner marring the apsuch a take upmechanism as will automatically adjust itself to feed the thread for thelongest stitches as well as for the shortest stitches, or anyintermediate length stitches. I

I have shown by way of example one embodiment of my take up mechanism,though my invention is not to be limited to this particular form, but onthe contrary is limited only by the terms of my claims This take upmechanism is shown more in detail in Figs. 2, 6, 7 and 9 to 12inclusive. The needle thread 22 passes through an ordinary guide 83,tension devices 8%,21 and 85, then through the loop 86 of the coilspring take-up 87 mounted on the pin 88, thence through the ordinarytake-up 30 thence under the rigid guide 90, thence through the auxiliarytake-up 31 and'thence to the needle 10 preferably passing through anyform of old rigid guide 92. Upon the auxiliary take up 31 I mount an arm89 cooperating with a slot 91 in the plate 93 pivotallv mounted upon thepin 88. This plate 93 is provided with an arm 94 to cooperate with theloop 86 of the spring take up 87.

When the position of the parts are as shown in 9 the shuttle 39 is aboutto make one revolution without having its hook coiiperate with theneedle thread. In this position, the auxiliary take up 31 has beenraised to complete the stitch and draw the loop 18 taut on the reverseof the fabric 81 and at the same time raise the plate 93 so that its armas will free the spring'take p loop 86 permitting it to exert a springaction upon the needle thread 22 to assist in throwing the loop, pastthe center 95, Fig. 11, of the shuttle 39. In this Fig. 9 the needle isabout to make another of its maximum stitches, the needle thread 22having been previously played out by the take up mechanism. In thisposition the auxiliary take up 31 is at its extreme raised positionwhile the main take up 30 is in its extreme lower position. 011 the nextmovement of the parts the main take up 30 moves vertically at relativelyhigh speed taking with it the needle thread 22 which, however, is caughtby the fixed guide 90, this guide lying between the main take up 30 andthe auxiliary take up 31. As this main take up passes the fixed guide 90it pulls the needle thread 22 from the spool and through the tensiondevices 84, 21 and 85 with considerable speed so as to have suiiicientthread for the next stitch. My maximum stitches are so great that it isnecessary to prevent the main take up 30 exerting any strain-or pressureupon that portion of the needle thread which is worked into theembroidered article 81. If this were not done the goods 81, aspreviously noted, would become puckered and ruined or the needle threadwould be continually breaking. I, theretore, pacify the needle thread byarrang the auxiliary take up 31 so that it will .end slowly while themain take up is ascending quicldy. This permits the main take up 30 topull quickly upon the about to be passed through the needle...

lly this arrangement the quick upward increment of the in am take up 30feeds out sutllcient thread for the next stitch, the slight pullbackward of the needle thread through the auxiliary take up beinginapprcciablc and not being communicated to the goods. The needle thread22 is then played out sutliciently tor the next stitch. ll igr. l0, andthe main takeup 30 will then begin to descend leaving the needle threadslack as shown in Fig. 11. then enters the fabric 81 and forms the nextloop t8, the shuttle 39 enlarging that loop as shown in Fig. 12. p Whilethe shuttle 1s operating to enlarge the loop 48, the main take up 30descends toward the presser feet so as to remove all tension from theneedle thread 22 for such tension would prevent the shuttle successfullymaking; an enlarged loop 4-8. At the same time the auxiliary take up orpacifier 31 descends carrying withit the plate 98 with. its arm Setwhichbears on the loop 86 of the spring take up 87 and prevents thespring take up exerting any tens on upon the needlethreadQQ duringtheinitial st ge oi": makingthe loop. The needle then rises, while theshuttle 39 proceeds to. enlarge the loop 4:8, the parts being then sub--stantially in the position shown in Fig. 12.,

When the loop e8 just passes the point 95, Fig, 11, directly beneath thelongitudinal axis, oi he shuttle 89, the auxiliary take up 3 begins torise which immediately releases the pressure of the arm 94L upon theloop 86 of the sprint; take up 87 so that this spring; take up willinstantly exert a pull upon the loop 48 just as it isabout to pass thepoint and will pull the loop tree of the hook 67 so that it willcooperate with the shuttle thread 56 and term the thread loops on thereverse of the fabric 81, the loops being given a complete and finalpull by the auxiliary take up 31. The parts then have made one completecycle and are in position to have the main take up pull sullicientthread from the spool for the next stitch, and so on in the mannerpreviously described at length.

In the operation of the take up mecha- The needle nisin so far describedI have assumed that each stitch is of the maximum length which can bemade by the machine. In embroidery, for which this take up mechanism isparticularly adaptt-zd, it is necessary to fre quently change the lengthof stitch to obtain the most "beautiful. effects, either by contrustingthe maximum length of stitches 79 with the minimum length of stitches 97or by gradually tapering; the stitches from the maximum to the minimumto obtain the desired result. This requires that the take up mechanismcan adjust itself instantly and automatically to the particular lengthof stitch which may for the moment he used.

If after making one or more stitches of maximum length it is desired tomake a shorter stitchby operating the rock arm l in the mannerpreviously described, it is obviousthat on the first short stitch,jumping :t'romthe maximum stitch, there will be a surplus of needlethread which has been previously played out by thoinain take up 30. Thissurplus taken up by the spring take up 8?. The spring take up 87,however, innncdiatcly permits the maximum stitch to be. madeautomatically by again moving the rock arm 4:, the take up mochanismautomatically adjusting itself to the particular len th of stitch whichmay at the moment he made by the machine.

liavinp; tnus described this invention in connection with the illust'ative embodiments thereof to the details or which I do not desire to belimited, what is claimed as new and what it isdesired to secure by Letters Patent is set forth in the appended claims.

1. In a sewing machine, the combination of a support carried by the headof the mar chine, resilient means mounted on the support and adaptedtoengagethe thread to take up any slack, a maintahc up, an auxiliary takeup, and means partly carried by the support and partly by the auxiliarytake up adapted to render the resilient means carried by the supportinoperative.

2. In a sewing machine, the combination of a support car ied by the headoil the machine, a coil spring mounted upon the support and adapted totake up any slack, a main take up, an auxiliary take up, and meanspartly carried by the support and partly by the auxiliary take upadapted to render the coil spring talre up inoperative.

3. In a. sewing machine the ctnnbination oi a support upon the head. oilthe machine, a coil spring motuited on the support and provided withmeans to engage and normally pull the thread, a main take up, anauxiliary take up, and means actuated by the auxiliary take up to renderthe coil spring inoperative.

4. In a sewing machine, the combination of a support upon the head ofthe machine,

a coil spr'ng mounted upon the support and provided with a loop toreceive the thread, a main take up, an auxiliary take up, a fixed guide,a plate mounted on the support and provided with an arm to cooperatewith the loop of the coil spring, and means carried by the auxiliarytake up adapted to actuate the plate mounted on the support.

5. In a take up mechanism for a sewing machine, t 1e combination of amain pivoted take up, an auxiliary pivoted take up separately mountedadjacent to the main pivoted take up, a fixed thread guide mountedbetween the main and auxiliary take ups, and a resilient take up.

'6. In a take up mechanism for a sewing machine, the combination of amain pivoted take up, an auxiliary pivoted take up mounted adjacent tothe main pivoted take up, means to move the main and auxiliary take upsin opposite directions, a fixed thread guide mounted between the mainand auxiliary take ups, and a resilient take up.

7. In a take up mechanism for a sewing iachine, the combination of amain pivoted take up, an auxiliary pivoted take up mounted adjacent tothe main pivoted take up, means to move the main and auxiliary talre upsin diiierent directions and at different speeds, a fixed thread guidemounted between the main and auxiliary take ups, and. a resilient takeup.

8. In a take up mechanism for a sewing machine, the combination of amain pivoted take up, an auxiliary pivoted take up, means to operatethem independently of each other, a fixed thread guide over which thethread passes between the main and auxiliary take the resilient take upinoperative during a portion of the movement of making a stitch.

9. In a take up mechanism for a sewing machine, the combination of amain. pivoted take up, an auxiliary pivoted take up, means to operatethem independently of each other, a fixed thread guide over which thethread passes between the main and auxiliary take ups, av resilient takeup, and means operated by the auxiliary take up to render the resilienttake up inoperative during a portion of the movement of making a stitch.

10. The combination in a sewing machine using unwaxed thread of a takeup mechanism always permitting the passage of the thread through thesaid talre up mechanism, including a main pivoted take up, an auxiliarypivoted take up, a fixed thread guide located between the main andauxiliary take ups, a resilient take up and means to render theresilient take up inoperative at a certain period of the stitchingoperation.

11. The combination in a sewing machine using unwaxed thread of a takeup mechanism always permitting the passage of the thread through thesaid take up mechanism including a main pivoted take up, an auxiliarypivoted take up, a fixed thread guide located between the main andauxiliary take ups, a resilient take up and means operated by theauxiliary take up to render the resilient take up inoperative at acertain period of the stitching operation.

MAX DRUCKERMANQ lVitnesses ALAN M. JOHNSON, Rosn MENK.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner 0! Patents.

Washington, D. C."

